Improvement in steam-generators



UNrrnn STATES @Afrnnr iii-rot SELF, HAYWARD HUTOHINSON, HUTOHINSON, OF SAME PLACE.

JESSE L. HUTOHINSON, AND ELIAS S.

IMPROVEMENT IN STEAM-GENERATORS.

Specification forming part of Letters Patent No. 52,2413, dated January 23, 1866.

To all whom it may concern:

Be it known that I, GHARLS HENRY FORD, of the city and county of Baltimore and State of Maryland, have made new and useful Improvements in Steam-Boilers; and Ido hereby declare the following to bea full, clear, and exact description of the nature,construction, and operation ofthe same, suflicient to enable one skilled in the art to which it is allied to construct and use the same, reference being had to the accompanying drawings, in which my improvements are shown as applied to an ordinary cylindrical steam-boiler.

The invention consists in contracting the water-space of the boiler by supporting shapes suitable, of wood or metal, or any proper substance not destructible in reasonable time when submerged in water, within the boiler, and so arranged therein, by adjusting-screws or othermechanicalcontrivances similar thereto. that a surface and depth of water may be exposed to the action of the furnace of any required quantity, the object of the invention being economy and safety, both of fuel and material.

In the accompanying drawings, Figure l is a transverse section through the line A B, Fig'. 2; and Fig. 2, a longitudinal section of the boiler, illustrating the use of wood as the displacing medium. Fig. 3 is a transverse section of a similar boiler, illustrating the use of a water-displacer of hollow metal.

Similar letters of reference indicate corresponding parts in the several views.

A may represent an ordinary cylindrical boiler without flues.

Bis the water-displacer, which, as shown in Figs. l and 2, may consist of a semicylindrical piece of oak or other timber, bound at intervals withiron straps, to keep it from splitting, and held adj ustablyat any desired height by screw-rods c d c f, secured to the displacers by means of several plates c el ef, and passing upward through suitable packing in the shell of the boiler, their upper ends being provided with nuts an a n or other means of adjustment.

In Fig. 3 the displacer B is shown iu the form of a metal vessel open at the top to afford additional steam-space. This displacing vessel may be more advantageously made with its upper and lower surfaces conforming nearly to the arcs of the top'and bottom of the boiler and its vertical depth contracted so far as needful to afford the requisite room for adjustment, and having in its top one or more apertures (which may be of small area) for the admission of steam.

It will thus appear that the last-named form of my invention possesses the additional advantage of providing for the displacement of a large amount of water and consequent elevation of the water-level, without any considerable diminution of the steainspace or the entire capacity 0f the boiler.

I do not, however, desireto limit myself to the precise form or material of the displacer or to the described means of raising and lowering the same.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The adjustable water-displacer, adapted to be raised and lowered Within a steam-boiler, substantially as and for the purposes set forth.

CHARLES HENRY FORD.

Witnesses:

OorAvrUs KNIGHT,A ALEXR. A. C. KLAUCKE. 

